London Underground is heading for its most reliable year since Transport for London took responsibility for the Tube a decade ago,official figures show.
Average delays on the network are at their lowest since 2003/04 according to the latest performance figures for the Tube.
The figures cover a four week period between 11 December 2011 and 7 January 2012.
They show that the Tube now looks set to end the year with the lowest average for delays - as measured by the number of customer hours lost to disruption - since the measurement began in 1999, and across the network lost customers hours have been reduced by almost 40% since 2007/08.
Passenger numbers were 7% higher than the same period in the previous year.